Seat



Dec. 4, 1928. 1,693,770

v R. c. wlLsoN SEAT Filed Sept. 27. 1926 nucmoz manner to cushionvibrations of the car and Patentecl` Dec. 4, 1928.

UNITED sTATss RAYMOND C. WILSON, OF NEW YORK, N. Y., ASSIGNOR TOINTERNATIONAL TIVO'I'OR PATENT OFFICE- COMPANY, OF YORK, N. Y.,,CORPORATION OF DELAWARE.

SEAT.

Application filed September 27, 1926. Serial No. 137,886.

The present invcntion relates to swivel seats such as inay be usedin'vehicle busses, or in i'ail cars, where it is necessary,Afii'equently, to reverse the position of any or all of the seats, asfor example, when the direction in which the car travels is reversed, orwhen several people wish to face the scats so as to engage inconversation over an extended trip.v

In such cases it is desirable to rotate the seats with ease and also tosecure them in a desired position without the necessity of manipulatingcertain mechanism designed to acconiplish such result.

An object of this invention is to provide a seat of the above type whichmay be rotated easily aiid wliich may be secured in any desiredposition, against casual inovement due to the inovement of the car orbus upon which it is mounted.

Referring to the accompanying forining a parthereof: i

Figure 1 is an elevation, partly in section, of a 'preferred form of mydevice.

Figure 2 is a plan view of the friction disc taken on line 2-2 ofFicfurel and looking drawings 2D in the direction of the arrows.

In the drawings, a represents a base provided at its lower extremitywith'a flange a' and at its upper extreinity 'with a horizontal bearingsurface m2. Projecting downwardly andl strengthened by webs aa is aVertical bearing (L4.

An annular clamping jaw b engages an annulus of rubber or other yieldingmaterial o' which reccives the flange a' to seat it in a screws 52secure the clampingl member to the floor.

A horizontal friction surface as is provided at the bot-tom of thebearing a4 and is engaged by a friction disc to be desci'ibed later.

The seat frame o is formed with a sub frame o' carrying a frictionsurface, or fiat 02, and a downwardly extending shaft C3. Bearing a*receives the shaft 03 and supports it with capacity for rotation.

A plate c* receives the thrust of the shaft 03 and is norinally held atits upper position, shown in Figure 1 by a spring 05 whichbalances thethrust due to the weight of the seat. Suitable means, such as boltc6secures the plate o* to the shaft and between the two is provided afriction disc 07 secured to the plate c* by suitable means, such asrivets cs.

sonof its contact with the frictien surface (W under the pressurevexerted by spring G5.

. Vhen, however, a person sits in'the seat, or

suflicient pressure is eXerted there'on, the i spring' and seat aredepressed and the disc o* disengages the surface a and the seat may beturned to any desii'ed position.

Changes maybe made in the design and arrangement of parts without'departing from" the scope of the inv'ention as recited in the fappended claims.

What I claimis: 1. In a swivel seat, a base, a seat frame,

means vto mount the frame in the base rotat;

ably, means to receive the thrust of the seat when the latter isoccupied, means independ ent of the last named means to exert a forceupwardly against the frame to resist the weight of the seat, means toreceive the thrust of the frame due to the force of said last Vnamedmeans, and fi'iction 'means disposed between the last Vnainedl thrustreceiving means whereby the seat-.will be restrained from swivellingmovements.

2. In a swivel seat, a base, a Vertical cylindrical bearing' formed inthe base, horizontal surfaces on the base at the upper and lowerextreinities of the bearing, a seat frame, a

downwardly' extending shaft on the seatl frame and carried-by theVertical bearing in the base, a iane on the sha'ft to engage the uppersurface of the base when the seat occupied, a disc secui'ed to thelower'end of the i shaft and adapted to engage the lower surface of thebase, a spring seated by the disc and' normally ui'ging the seat frameupwardly and the disc into engagenient with the lower surface, andfriction means between one of the surfaces and its cooperating portionof Vthe seat frame.

.This specification signed this 21st day Vof Sept. A. D. 1926. i.

. I RAYMOVND owiLsoN.

